Finding the Third Proportional to 3,739,142 and 8,133,420

Step by Step Solution

1. Step 1: Write the proportion equation
   3,739,142 : 8,133,420 = 8,133,420 : x
2. Step 2: Convert to fraction form
   3,739,142/8,133,420 = 8,133,420/x
3. Step 3: Cross multiply
   3,739,142x = 8,133,420 × 8,133,420
4. Step 4: Simplify right side
   3,739,142x = 66,152,520,896,400
5. Step 5: Solve for x
   x = 66,152,520,896,400/3,739,142
6. Step 6: Final answer
   x = 17,691,898.54